When most people tackle DIY projects related to airports, it's usually some kind of over-the-top commercial airline simulator. But not Ben Krasnow He took a decidedly different approach by building his own X-ray backscatter machine using various parts found on eBay.

The final results aren't quite as instant as the machines deployed by airport security across the country, though. In fact, Ben needs to use a separate digital camera to capture a long-exposure image of an oscilloscope to truly see what something or someone is hiding. But he can rest assured knowing that his holiday guests aren't trying to smuggle any contraband into his home. "I'm sorry ma'am, but you're going to need to throw out that mac and cheese, or squeeze it into an approved container." [YouTube via Geekosystem]